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Bankruptcy Interest Calculation

Calculate Bankruptcy Claim Interest in Minutes, Not Hours

8 minutes with CaseMark

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Workflow

Bankruptcy Interest Calculation

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Workflow

Bankruptcy Interest Calculation

Overview

CaseMark's Bankruptcy Interest Calculation skill automates the complex process of computing pre-petition interest for bankruptcy proofs of claim. It analyzes your loan documents to determine the correct interest rate, day-count convention, and accrual period, then generates a defensible, filing-ready worksheet. The tool also evaluates post-petition interest eligibility under § 506(b) and assesses authorized fee inclusion.

Calculating interest for bankruptcy proofs of claim is tedious and error-prone. Attorneys and paralegals must manually identify the correct rate source, determine the proper day-count convention, compute per diem amounts, count accrual days, and assess post-petition interest eligibility—all while ensuring every figure is defensible against trustee or debtor objections.

CaseMark automates the entire interest calculation workflow by analyzing your loan documents and claim details to produce a complete, filing-ready interest worksheet. The AI applies the correct rate hierarchy, day-count convention, and simple interest formulas, then evaluates post-petition interest and fee inclusion—delivering accurate, citation-backed calculations in minutes instead of hours.

How it works

  1. 1. Upload your loan agreement, claim details, and supporting documents

  2. 2. AI identifies the applicable interest rate, day-count convention, and accrual period

  3. 3. Review the calculated pre-petition interest, post-petition analysis, and fee assessment

  4. 4. Export the filing-ready worksheet for attachment to your proof of claim (DOCX, PDF)

What you get

  • Interest Rate Source Analysis

  • Day-Count Convention Determination

  • Per Diem and Pre-Petition Interest Calculation

  • Post-Petition Interest Assessment

  • Authorized Fees and Charges Summary

  • Filing-Ready Interest Worksheet

What it handles

  • Automatic rate source hierarchy analysis (contract, judgment, statutory, federal)

  • Day-count convention detection and per diem calculation

  • Pre-petition interest computation with defensible formulas

  • Post-petition interest analysis under 11 U.S.C. § 506(b)

  • Fee and authorized charge inclusion assessment

  • Filing-ready worksheet generation for proof of claim attachment

Required documents

  • Loan Agreement or Promissory Note

    The underlying credit agreement, promissory note, or other instrument governing the debt obligation and interest terms

    .pdf, .docx

  • Claim Details Summary

    Document containing the principal balance, annual interest rate, last payment date, petition date, and any prior judgment information

    .pdf, .docx, .xlsx

  • Payment History or Account Statement

    Records showing the payment history, outstanding balance, and any accrued charges on the account

    .pdf, .docx, .xlsx

Supporting documents

  • Pre-Petition Judgment

    Any judgment entered prior to the bankruptcy filing that may establish the applicable interest rate

    .pdf, .docx

  • State Statutory Rate Reference

    Documentation of the applicable state prejudgment interest rate if no contract or judgment rate applies

    .pdf, .docx

  • Prior Proof of Claim or Amended Claim

    Any previously filed proof of claim for reference or amendment purposes

    .pdf, .docx

Why teams use it

Eliminate manual per diem calculations and reduce arithmetic errors that can lead to claim objections

Ensure defensible rate sourcing with automatic hierarchy analysis across contract, judgment, statutory, and federal rates

Save hours of preparation time per proof of claim with automated worksheet generation

Maximize claim recovery by accurately capturing post-petition interest for oversecured claims under § 506(b)

Questions

How does CaseMark determine which interest rate to apply?

CaseMark follows a priority hierarchy: contract rate first, then judgment rate, state statutory rate, and finally the federal rate under 28 U.S.C. § 1961. It cites the governing source with the applicable section number or statutory citation for defensibility.

Can CaseMark handle different day-count conventions?

Yes. CaseMark identifies the day-count convention specified in your loan agreement—whether Actual/365, Actual/360, or 30/360—and applies the correct divisor. When no convention is specified, it defaults to Actual/365 per standard practice.

Does the tool calculate post-petition interest for oversecured claims?

CaseMark analyzes whether post-petition interest applies under 11 U.S.C. § 506(b) for oversecured claims. It evaluates the equity cushion and calculates allowable post-petition interest, helping you maximize your claim where permitted.

Is the generated worksheet suitable for filing with the bankruptcy court?

The worksheet is designed to be filing-ready and attachable to your proof of claim. It includes all calculations, rate citations, and methodology documentation that courts expect. However, you should review the output for accuracy before filing.

Can CaseMark handle both consumer and commercial loan calculations?

Absolutely. CaseMark supports consumer loans, mortgages, commercial credit facilities, and other debt instruments. It adapts its day-count convention and rate analysis based on the type of underlying agreement you provide.

How does CaseMark handle fees and charges in the claim amount?

CaseMark reviews your loan agreement for authorized fee provisions and assesses which charges are includable in the total claim amount. It separates principal, interest, and fees so each component is clearly documented and defensible.

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