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Comparisons

TDR Prep vs TDR Preflight: subscription or reviewed file?

TDR Preflight sells a reviewed file and evidence package for one month of hourly or labor-hour services work. TDR Prep is a subscription that checks every month against the SRP file rules as you build it. One is a project price; the other is a monthly tool.

Each side

What each one is

TDR Prep

TDR Prep is self-serve software. You import the month, map items once, see every line SRP would reject, fix it, and download the file. Plans are priced by contract count and reported lines.

TDR Preflight

TDR Preflight is a reviewed-file service aimed at MAS hourly and labor-hour services. It also sells an annual workspace, which its page describes as workspace access, with any ongoing expert preparation scoped separately. Its page lists a narrow output and transaction types that block.

Side by side

The dimensions both share

TDR PrepTDR Preflight
Starts fromQuickBooks Online or a CSV exportCSV or XLSX, and read-only QuickBooks Online
Published price$99, $149 or $249 a month$5,000 for one reviewed month; $24,000/year for annual workspace access
ScopeCatalog items mapped to SIN, unit of measure, manufacturer and part numberHourly and labor-hour services; several transaction types block, per its page
Who submitsThe contract holder uploads and certifies in SRPThe customer reviews and submits, per its page

Pick us

Pick TDR Prep if

  • You report every month and want the cost spread evenly across the year.
  • Your schedule includes products, or a mix of products and services.
  • You want to run your own data through the file rules for free before paying.

Pick them

Pick TDR Preflight if

  • You bill labor hours only and want someone to review a difficult month.
  • An evidence package for one month is worth a project fee to you.

Verdict

The bottom line

Price twelve months, because SRP takes a report every month. A reviewed month is a project fee each time it is bought. The annual workspace is software access priced by the year, and its page says ongoing expert preparation is scoped separately, so it does not replace the reviewed month. TDR Prep's plans run $99, $149 or $249 a month.

If your contract bills labor hours only, TDR Prep's free validation, once it opens, shows whether every line of a month clears. Ask TDR Preflight which of your transaction types its output accepts.

Questions

Frequently asked questions

Which is cheaper over a year?

TDR Preflight publishes $5,000 for one reviewed month; $24,000/year for annual workspace access. The workspace figure is already a yearly price, and it buys workspace access; ongoing expert preparation is quoted separately. TDR Prep's plans are $99, $149 or $249 a month, so multiply the monthly plan price by twelve, and the reviewed-month fee by the number of months you would buy it.

Do services-only holders need monthly TDR?

Yes. GSA says Refresh 31 made TDR mandatory for every MAS SIN, and it publishes services reporting guidance for labor-hour and time-and-materials lines.

Does either one certify the report?

No. The contract holder certifies in SRP in both cases.

Sources

Where these facts come from

Prices and scope as each provider published them on October 5, 2026. A provider can change its page; follow the link for the current version.

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