Arizona Late Fee Calculator
Your late fee
$62.50
Paid 12 days late; the lease has no grace period.
- Days past due
- 12 days
- Grace period ends
- No grace period
- Earliest fee date
- September 29, 2026
- Lease late fee
- 5% of $1,250.00 = $62.50
- Rent + late fee
- $1,312.50
Arizona: A.R.S. §§ 33-1301 to 33-1381 contains no late fee provision, so there is no legal cap or waiting period to apply; only your lease terms count.
Next step: turn these figures into a late rent notice for the tenant.
Mobile home parks in Arizona
This applies to mobile home park tenancies only: the lease must give the tenant at least five days past the due date before any late penalty, and if the rent is still not paid by the sixth day the penalty can be up to five dollars a day, counted from the due date.
A. A rental agreement shall not provide that the tenant agrees to: [...] 4. Permit the landlord to charge a penalty fee for late payment of rent unless a tenant is allowed a minimum of five days beyond the date the rent is due in which to remit payment. [...] C. A landlord may charge a penalty fee of not to exceed five dollars per day from the due date of the rent for late payment of rent if the payment is not remitted by the sixth day from the due date.
Recreational vehicle spaces in Arizona
This covers recreational vehicle long-term rental space agreements only: if rent is still unpaid by the sixth day after it was due, the agreement may charge at most five dollars a day, counted from the due date until payment.
The rental agreement shall be for a specific period and: [...] 2. May provide that the landlord may charge a late fee of not more than five dollars per day from the due date of the rent until the rent is paid if the rent is not remitted by the sixth day after the due date.
Arizona rent late fee law
Arizona's landlord and tenant act for dwellings names no maximum late fee and no grace period; late fees appear in it only as charges stated in the written rental agreement.
Read in full for this check: Arizona Revised Statutes, Title 33, chapter 10 (Arizona Residential Landlord and Tenant Act). Official source · checked .
Late rent notice builder
Before you send it: this builds a reminder letter about overdue rent and a late charge. It is not an eviction notice. A notice to pay rent or quit is a separate document, and Arizona has its own rules for it. Nothing on this page is legal advice.
[Your name or company]
Date: October 10, 2026
To: [Tenant name]
[Rental property address]
Re: Overdue rent for [Rental property address]
Dear [Tenant name],
This letter is a reminder that the rent of $1,250.00 for [Rental property address] was due on September 28, 2026. As of October 10, 2026, $1,250.00 of it is still unpaid (12 days past due).
Your lease provides for a late charge, which comes to $62.50.
Amount now due
- Unpaid rent
- $1,250.00
- Late charge
- $62.50
- Total
- $1,312.50
Please pay $1,312.50 at your earliest opportunity.
If this letter crossed with your payment, please disregard it.
Regards,
[Your name or company]
How to use the Arizona rent late fee calculator
- Enter the monthly rent and the rent that is overdue.
- Enter the date the rent was due and the date it was paid, or today if it is still unpaid.
- Choose how the lease sets the late fee (percent of rent, flat amount or dollars per day) and type the figure from the lease.
- Enter the grace days written in the lease.
- Read the late fee and the earliest fee date, then copy the figures or print a late rent notice.
Work out interest on an overdue B2B invoice under Arizona law. The legal default rate — what applies when the contract is silent — is 10%, and the statute is quoted verbatim below. All math runs locally in your browser.
Legal rate when no rate is agreed in writing.
Late fee breakdown
- Interest owed
- —
- Daily rate
- —
- Total (invoice + interest)
- —
Still unpaid? Generate a formal demand letter — it computes the interest and cites Arizona's statute (A.R.S. §§ 44-1201, 44-1202) for you.
Worked example: Arizona invoice interest at 10%
Interest at Arizona's statutory default of 10% a year, worked out with the same formula as the calculator above: amount × (10% ÷ 365) × days. If your contract states its own rate, enter that rate in the calculator instead.
| Invoice amount | 30 days late | 60 days late | 90 days late |
|---|---|---|---|
| $1,000.00 | $8.22 | $16.44 | $24.66 |
| $5,000.00 | $41.10 | $82.19 | $123.29 |
| $10,000.00 | $82.19 | $164.38 | $246.58 |
What Arizona law says about invoice interest
For any loan, indebtedness or obligation other than medical debt, interest shall be at the rate of ten percent a year, unless a different rate is contracted for in writing, in which event any rate of interest may be agreed to.
Quoted verbatim from the linked official source — not our paraphrase. How we source and re-check every row is documented in the data methodology.
Maximum late fee in Arizona — written B2B contracts
No statutory cap
No usury ceiling: any rate is lawful if agreed in writing. The 10% figure is only a gap-filler when the contract sets no rate.
Basis: A.R.S. §§ 44-1201, 44-1202. Compare all 51 jurisdictions in the maximum late fee by state table and cap-regime map.
Rent and invoices follow different laws — consumer debt is not covered
The Invoice tab, the rate card and the statute sections on this page are about business-to-business invoices. Residential rent late fees live in Arizona's landlord-tenant law. Arizona: A.R.S. §§ 33-1301 to 33-1381 contains no late fee provision, so there is no legal cap or waiting period to apply; only your lease terms count. Consumer credit has separate, stricter rules. The distinction is explained in B2B invoice late fees vs. residential rent.
Use this data
Arizona's row — rate, cap, citation, verbatim quote, verification date — is part of our open 51-jurisdiction dataset: CSV · JSON (CC BY 4.0, cite myinvoicetemplate.com). Set late-fee terms on your next invoice with the free invoice generator, or state them clearly using the wording guidance in the payment terms guide.
Arizona late fee FAQ
Is there a legal limit on rent late fees in Arizona?
Arizona's landlord and tenant act for dwellings names no maximum late fee and no grace period; late fees appear in it only as charges stated in the written rental agreement. Read in full for this check: Arizona Revised Statutes, Title 33, chapter 10 (Arizona Residential Landlord and Tenant Act), checked 2026-10-03. The late fee and grace days in the lease decide.
How do I work out a late fee on rent in Arizona?
Enter the monthly rent, the overdue amount, the date the rent was due and the date it was paid, then the late fee in the lease (a percent of rent, a flat amount or dollars per day) and its grace days. The calculator gives the late fee, the earliest fee date and rent plus fee, and turns them into a late rent notice.
Can I charge late fees on overdue invoices in Arizona?
Yes — on business-to-business invoices. If your contract or invoice states a late-fee rate, that rate governs (subject to the cap rules below). If nothing was agreed: 10%. Legal rate when no rate is agreed in writing. Statute: A.R.S. §§ 44-1201, 44-1202, verified 2026-08-19. Consumer and rent debts follow separate laws.
What is the maximum late fee on a B2B invoice in Arizona?
For a written B2B contract: No cap — any rate agreed in writing is lawful. Basis: A.R.S. §§ 44-1201, 44-1202. The full cap analysis is on the Invoice (B2B) tab; this covers business-to-business deals only — consumer credit has stricter separate caps.
What interest applies if my contract doesn't mention late fees in Arizona?
The statutory default rate of 10%. Legal rate when no rate is agreed in writing. Statute: A.R.S. §§ 44-1201, 44-1202 (verbatim quote on this page, verified 2026-08-19).
Where does this data come from, and when was it verified?
Every invoice-interest figure on this page comes from our 51-jurisdiction dataset: each row researched against the controlling statute or the state's official current-rate page, independently re-checked, and stamped with its own verification date — Arizona's row was last verified 2026-08-19. The operative legal text is quoted verbatim on this page with a link to the official source, the methodology is public, every verification pass is logged in the changelog, and the full dataset is downloadable (CC BY 4.0).
Not legal advice. This page summarizes Arizona's commercial-interest statute for general information, with the verification date shown above — it tells you when we last confirmed the figures, not that they are still current today. Statutes change and courts interpret them; verify the cited statute at the official source, or ask a licensed attorney in your state, before charging a late fee or demanding interest.