OpenChainGraph Suite · ART-616 · US Consumer Credit Compliance

MLA MAPR Actuarial Recompute

Recomputes a Military Lending Act MAPR for closed-end credit by the Regulation Z actuarial method that 32 CFR 232.4(c)(2)(i) cross-references, run over the wider charge set 232.4(c)(1) requires and compared against the 36 percent limit in 232.4(b). Includable prepaid charges reduce the amount advanced rather than the payment stream, which is what makes an MAPR an APR over more charges instead of a different formula. A rate is reported only when a sign-change bracket was established.

32 CFR 232.4 Reg Z Appendix J Actuarial 36% MAPR Cap Bracket Or Refuse
🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Credit Terms
Principal disbursed at consummation, before any charge is deducted.
Regular periodic payment.
Total scheduled payments.
12 = monthly, 26 = biweekly, 52 = weekly. Appendix J (b)(1) annualizes by multiplying.
Days from consummation to the first unit period. 0 = regular.
Days in one payment period. 30 for a monthly unit period.
Charges Under 32 CFR 232.4(c)(1)
Enter the dollar amount of each charge imposed. A charge included by the clause and collected at consummation reduces the amount advanced. The Regulation Z finance charge is included by (c)(1)(iii)(A) but is already priced by the payment schedule, so it is echoed here and never deducted twice.
(c)(1)(i). Never excludable, per (d)(2)(i).
(c)(1)(i). Never excludable.
(c)(1)(i). Never excludable.
(c)(1)(i). Never excludable.
(c)(1)(ii). Never excludable, per (d)(2)(ii).
(c)(1)(iii)(A). Echoed, not deducted: the payment schedule already prices it.
(c)(1)(iii)(B).
(c)(1)(iii)(C), subject to (c)(2)(ii)(B).
Residual non-enumerated fee. Excludable under (d)(1) only on a credit card account.
Type yes or no. The (d)(1) bona fide fee exclusion reaches only a credit card account.
Type yes or no. Applies to the application fee alone, under (c)(1)(iii)(B).
MAPR Result
Charge Treatment
Calculation Summary
Execution Hash (SHA-256)
What this node does and does not settle

This is a verify-only recompute. It takes figures you supply and returns a rate plus a comparison against the 36 percent limit, so you can check it against your own systems. It does not determine covered-borrower status, it does not read any external record, and it does not assert that a real transaction meets the Military Lending Act.

Two questions under the clause are surfaced rather than answered. Whether a fee is bona fide and reasonable turns on a comparison against fees charged by other creditors, which 232.4(d)(3) sets out and this node has no way to perform. Whether the application-fee exception in (c)(1)(iii)(B) applies turns on creditor type, on the loan being short-term and small amount, and on a rolling 12-month charging history. Where either is live the result carries a manual review flag naming the open test, and the charge stays in the arithmetic meanwhile.

The $100 figure this node reports is the open-end no-balance limit in 232.4(c)(2)(ii)(B). It is not a general exclusion from a closed-end MAPR and is not netted out of the calculation here. Property-test run complete against the specification in research/MLA-MAPR-ACTUARIAL.spec.md; that specification is under review.








  

    
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Copy this paragraph into Claude, OpenClaw, or any MCP-aware agent to run this exact tool, with this sample, and verify the artifact.

  
Run the AINumbers MCP tool `recompute_mla_mapr_actuarial`. Task: Recompute a closed-end Military Lending Act MAPR by the Regulation Z actuarial method over the 32 CFR 232.4(c)(1) charge set, and compare it against the 36 percent limit in 232.4(b).
Call it with arguments: {"policy_parameters":{"advances":[{"amount":1000,"full_periods":0,"fraction":0}],"payments":[{"amount":1030,"full_periods":1,"fraction":0}],"periods_per_year":12,"mla_charges":[]}}
Verify before trusting: call `verify_execution_hash` on mcp.ainumbers.co (https://mcp.ainumbers.co/mcp) with the parameter `claimed_hash` set to the returned `execution_hash`, passing the full artifact the run returned (the object containing `policy_parameters` + `output_payload` + `execution_hash`; equivalently `policy_parameters` + `output_payload` with `claimed_hash`), not the bare hash string.
Return the ledger link https://ledger.ainumbers.co/ so a human can re-verify without contacting us.
PII rule: All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Open the tool with the sample prefilled: https://ainumbers.co/chaingraph/art-616-mla-mapr-actuarial-recompute.html#p=v1.H4sIAAAAAAAA_wGeAGH_eyJhZHZhbmNlcyI6W3siYW1vdW50IjoxMDAwLCJmdWxsX3BlcmlvZHMiOjAsImZyYWN0aW9uIjowfV0sInBheW1lbnRzIjpbeyJhbW91bnQiOjEwMzAsImZ1bGxfcGVyaW9kcyI6MSwiZnJhY3Rpb24iOjB9XSwicGVyaW9kc19wZXJfeWVhciI6MTIsIm1sYV9jaGFyZ2VzIjpbXX2BQ5qMngAAAA