Real Estate Invoicing: Construction Draws, Property Management & Commission Billing

TL;DR: Real estate invoicing spans multiple sub-industries, each with its own conventions. Construction uses progress billing against a schedule of values, retainage holdbacks of 5 to 10 percent, and AIA-format pay applications. Property management invoices cover rent, maintenance, and common area charges. Agent commissions are invoiced against closing statements. Every real estate invoice must account for the chain of parties involved — owners, general contractors, subcontractors, property managers, tenants, and escrow agents — because a billing error at any link can delay payment for everyone.

Real estate is one of the most invoicing-intensive industries because of the number of parties, the size of the transactions, and the regulatory requirements that govern payment. A single commercial construction project can generate hundreds of invoices flowing between owners, general contractors, subcontractors, suppliers, architects, and inspectors. A property management company bills tenants monthly while simultaneously paying vendors, reconciling common area maintenance charges annually, and reporting to property owners.

This guide covers the invoicing practices specific to each segment of real estate, with a focus on the formats, terms, and documentation that keep payments moving.

Construction Draws and Progress Billing

Construction projects are billed progressively as work is completed, not in a single lump sum at the end. This is called progress billing or draw billing, and it is tied to a schedule of values established at the start of the project.

How Progress Billing Works

1. Schedule of values: At contract signing, the contractor breaks the total contract amount into line items by trade or phase (e.g., foundation, framing, electrical, plumbing, roofing). Each line item has a dollar value.
2. Monthly pay application: Each month, the contractor submits a pay application showing the percentage of each line item completed during that period.
3. Inspection and approval: The owner or architect inspects the work, verifies the claimed progress, and approves (or adjusts) the pay application.
4. Payment with retainage: The owner pays the approved amount minus retainage (typically 5 to 10 percent held back until project completion).

Schedule of Values Example

After 10% retainage: Payment due = $117,000 - $11,700 = $105,300

For a deeper dive into construction-specific billing formats, see our construction invoicing guide.

AIA Billing: The Industry Standard

The American Institute of Architects (AIA) publishes standardized billing documents that are the default in commercial construction across the United States and increasingly adopted internationally.

Key AIA Documents for Billing

• AIA G702 — Application and Certificate for Payment: The cover sheet that summarizes the pay application, including the original contract sum, approved change orders, total completed to date, retainage, and amount due this period.
• AIA G703 — Continuation Sheet: The detailed schedule of values showing each line item, previous completion, current completion, materials stored, and amount due.

Why AIA Format Matters

Most commercial construction contracts require AIA-format billing. Submitting invoices in a non-standard format will delay payment because:

• The owner's project manager expects the standardized layout
• The architect reviewing the application is trained on AIA forms
• Lenders funding the construction loan require AIA documentation for draw releases
• Title companies issuing lien waivers reference AIA application numbers

Completing an AIA Pay Application

1. Update the schedule of values with current completion percentages for each line item
2. Include the value of materials stored on site but not yet installed (if applicable)
3. Calculate retainage on the total work completed to date
4. Reference any approved change orders and their impact on the contract sum
5. Have the application notarized if required by the contract
6. Submit with supporting documentation: lien waivers, inspection reports, and change order approvals

Retainage: The 5 to 10 Percent Holdback

Retainage is the portion of each progress payment that the owner withholds as security until the project is substantially complete. It incentivizes the contractor to finish punch list items and close out the project properly.

How Retainage Works

On every progress payment, the owner holds back a percentage — typically 5 to 10 percent of the amount due. This retainage accumulates throughout the project and is released (in whole or in part) when the project reaches substantial completion and all closeout requirements are met.

Example on a $1,000,000 contract with 10% retainage:

• Total progress billings over the project: $1,000,000
• Retainage held: $100,000
• Amount paid during construction: $900,000
• Retainage released at substantial completion: $100,000

Retainage Best Practices for Contractors

• Track retainage by line item and by project. Your invoicing system must show the cumulative retainage balance at all times.
• Invoice for retainage release promptly. Once substantial completion is certified, submit a retainage release invoice immediately. Delays here extend your payment timeline by weeks.
• Negotiate retainage reduction. Many contracts allow retainage to be reduced from 10% to 5% once the project reaches 50% completion. Request this at the appropriate milestone.
• Understand state retainage laws. Many states cap retainage percentages and mandate release timelines. Some states (like California) limit retainage to 5% on public projects. Check your jurisdiction.

Retainage Flow-Down to Subcontractors

General contractors withhold retainage from subcontractors at the same rate (or higher) than the owner withholds from them. Subcontractors should:

• Ensure their subcontract specifies the retainage percentage and release conditions
• Submit retainage release invoices to the GC as soon as their scope of work is accepted
• Track that the GC releases retainage within the contractually required timeframe

Lien Waivers and Their Role in Invoicing

A lien waiver is a legal document in which a contractor or subcontractor relinquishes the right to file a mechanic's lien against the property for the payment amount received. Lien waivers are exchanged at every payment milestone and are a prerequisite for receiving payment on most commercial projects.

Types of Lien Waivers

Lien Waiver Best Practices

• Never submit an unconditional waiver before receiving payment. An unconditional waiver waives your lien rights regardless of whether you are paid.
• Use your state's statutory waiver form. Many states (California, Texas, Arizona, and others) have mandatory lien waiver forms. Using a non-compliant form may be invalid.
• Collect waivers from all subcontractors before paying them. As a GC, you need sub waivers to submit with your own pay application.
• Track waiver status alongside invoice status. Your invoicing system should link each payment to its corresponding lien waiver.

Change Orders and Their Invoicing Impact

Change orders modify the original contract scope, schedule, or price. They are inevitable in construction and must be handled with precise documentation to avoid disputes.

How Change Orders Affect Invoicing

1. Proposal: The contractor identifies additional or changed work and submits a change order proposal with a price.
2. Negotiation and approval: The owner and contractor agree on the scope and cost. The change order is signed by both parties.
3. Contract adjustment: The approved change order increases (or decreases) the total contract sum.
4. Schedule of values update: A new line item is added to the schedule of values for the change order amount.
5. Progress billing: The change order work is billed through the normal pay application process as it is completed.

Change Order Invoicing Rules

• Never bill for change order work before the change order is approved in writing. This is the most common source of construction invoice disputes.
• Reference the change order number on the pay application. The AIA G702 has a specific field for approved change orders.
• Maintain a change order log. Track every change order by number, description, status (proposed, approved, rejected), and dollar amount.

For detailed guidance on structuring change orders and their billing implications, see our construction invoicing guide.

Contractor vs. Subcontractor Invoicing Chains

On any construction project with more than one trade, invoicing flows through a chain: subcontractors invoice the general contractor, who compiles sub billings into a master pay application to the owner.

The Payment Chain

Subcontractors → General Contractor → Owner → Lender (if construction loan)

Each link in this chain has its own invoice timeline, retainage terms, and lien waiver requirements. Payment delays at any level cascade down the chain.

Best Practices for Each Role

As a subcontractor:

• Submit your pay application to the GC by their deadline (typically 5 to 7 days before the GC's submission to the owner)
• Include conditional lien waivers with every pay application
• Track the GC's payment to you separately from the owner's payment to the GC
• Know your lien rights and filing deadlines in case of non-payment

As a general contractor:

• Establish clear billing schedules with every subcontractor at contract signing
• Compile sub pay applications into your master pay application
• Do not pay subs until you receive payment from the owner (pay-when-paid clause) or within the contractually required timeframe (pay-if-paid vs. pay-when-paid depends on your jurisdiction and contract terms)
• Collect sub lien waivers before submitting your pay application to the owner

For a comprehensive treatment of contractor billing structures, see our contractor invoicing guide.

Property Management Invoicing

Property management companies handle billing for landlords and property owners, invoicing tenants for rent and additional charges while also paying vendors and reporting to owners.

Tenant Invoicing

Monthly tenant invoices typically include:

• Base rent: The contracted monthly rent amount
• Common Area Maintenance (CAM) charges: The tenant's share of building operating expenses (cleaning, security, landscaping, insurance, property taxes)
• Utility reimbursements: Metered or allocated utility costs
• Parking fees: If applicable
• Late fees: For overdue rent payments

CAM Reconciliation

CAM charges are typically billed as monthly estimates based on the prior year's actual expenses. At year-end, the property manager reconciles estimated charges against actual expenses and issues either a supplemental invoice or a credit.

CAM reconciliation process:

1. Calculate total actual operating expenses for the calendar year
2. Determine each tenant's proportionate share (based on leased square footage as a percentage of total building area)
3. Compare actual charges to estimated charges collected during the year
4. Issue an adjustment invoice (if actual exceeded estimates) or a credit memo (if estimates exceeded actual)

Owner Reporting

Property managers invoice owners for management fees (typically 4 to 10 percent of collected rent) and provide monthly owner statements showing:

• Rent collected and outstanding
• Expenses paid on the owner's behalf
• Management fees deducted
• Net disbursement to the owner

Real Estate Agent Commission Invoicing

Real estate agents earn commissions on property transactions, and those commissions must be invoiced properly to flow through the closing process.

How Agent Commission Invoicing Works

1. Listing agreement establishes the commission rate (typically 5 to 6 percent of sale price, split between listing and buyer agents)
2. At closing, the commission is calculated against the final sale price
3. The brokerage (not the individual agent) invoices the closing/escrow company
4. The escrow company disburses the commission from the sale proceeds
5. The brokerage then pays the individual agent per their split agreement

Commission Invoice Requirements

• Invoice from the brokerage entity (not the individual agent's name)
• Reference the property address and transaction number
• State the commission rate and calculated amount
• Include the brokerage's tax ID and license number
• Submit to the escrow or title company handling the closing

Referral Fees and Commission Splits

When agents from different brokerages cooperate on a transaction, the listing brokerage pays a referral or co-op commission to the buyer's brokerage. This requires a separate invoice from the buyer's brokerage to the listing brokerage (or, more commonly, the escrow company disburses to both brokerages directly per the closing instructions).

Escrow Disbursements and Closing Statements

Escrow agents manage the flow of funds in real estate transactions, and their disbursement process intersects with invoicing for every party involved.

How Escrow Disbursements Work

At closing, the escrow agent:

1. Collects funds from the buyer (down payment, closing costs) and the lender (loan proceeds)
2. Pays off the seller's existing mortgage
3. Pays real estate commissions per the invoices submitted by brokerages
4. Pays title insurance, recording fees, transfer taxes, and other closing costs
5. Disburses the remaining proceeds to the seller

Invoicing into Escrow

Any party owed money at closing must submit an invoice or demand to the escrow agent:

• Home inspectors invoice the buyer directly (usually paid before closing)
• Appraisers invoice the lender (often paid at closing through escrow)
• Contractors who performed pre-sale repairs invoice the seller (paid through escrow)
• Attorneys invoice their respective clients (may be paid through escrow or directly)
• Brokerages invoice for commissions as described above

The Closing Disclosure

The closing disclosure (formerly HUD-1 settlement statement) is the master accounting document that itemizes every charge and credit for both buyer and seller. Every invoice that flows through escrow should reconcile to a line item on the closing disclosure.

Documentation and Record-Keeping for Real Estate Invoicing

Real estate transactions generate extensive paper trails that must be retained for legal, tax, and regulatory compliance.

Retention Requirements

For general record-keeping guidance applicable across all invoice types, see our invoice record-keeping guide.

Digital vs. Physical Records

Most jurisdictions accept digital records if they are stored securely, backed up, and can be produced on demand. However, some construction contracts and lien waiver requirements still mandate original signed documents. Check your contract and jurisdiction.

Frequently Asked Questions

What happens if a subcontractor files a mechanic's lien on a project where I am the owner?

A mechanic's lien is a legal claim against the property for unpaid work. As the owner, you may be liable even if you paid the general contractor in full — the GC may not have paid the subcontractor. This is why collecting lien waivers from all subs at every payment milestone is essential. If a lien is filed, consult a construction attorney immediately. Resolution typically involves paying the lien amount into escrow, negotiating a settlement, or contesting the lien's validity in court.

How do I invoice for a construction project that has both a base contract and a cost-plus component?

Some projects use a hybrid structure: a fixed-price base contract for the defined scope plus cost-plus billing for owner-directed changes or allowance items. Invoice the fixed-price portion through the standard schedule of values. For the cost-plus portion, submit actual cost documentation (vendor invoices, time sheets, material receipts) plus your contractual markup percentage. Keep these as separate sections on the pay application so the owner can review and approve each component independently.

Can a property manager charge tenants for CAM expenses not listed in the lease?

No. CAM charges must align with the definitions in the lease agreement. Most commercial leases define which operating expenses are included in CAM and which are excluded (capital improvements and management overhead are common exclusions). If a property manager invoices for an expense not covered by the lease definition, the tenant has grounds to dispute the charge. Always reference the specific lease clause when invoicing CAM charges.

How are real estate agent commissions taxed?

In the United States, real estate agents are typically classified as independent contractors (per IRS statutory classification), and commissions are reported on Form 1099-NEC. The brokerage issues the 1099 to the agent. Agents are responsible for self-employment tax on commission income. In other countries, the treatment varies — some classify agents as employees of the brokerage. Consult a tax professional in your jurisdiction for specifics. For general tax invoicing guidance, see our invoice tax compliance guide.