Learning Center | Allowances API

Featured articles

Start here for the highest-value guides and comparison pages.

Featured

Federal Allowance Source Finder

Trying to find the right federal allowance, per diem, COLA, TQSA, LQA, hardship, or danger pay source? Use this guide to identify the official U.S. government rate table for CONUS, OCONUS, and foreign post allowances.

GSA DSSR DTMO Official Sources

8 min read Read article

Technical guide

How to automate government allowance lookups in your application

Learn how developers can replace public-source table scraping and manual maintenance with a normalized API workflow.

Implementation Developers API

5 min read Read article

Compliance Guide

2026 Guide to DCAA Perdiem Compliance

A practical 2026 guide to DCAA per diem compliance for government contractors. Learn how to document travel costs, preserve historical rates, and support GSA, DTMO, and State Department per diem calculations during audits.

Govcon Per Diem Audit

7 min read Read article

Manual process vs API workflow

Compare spreadsheets, scraping, and API-based workflows for federal per diem and allowance data.

How to Manage Federal Per Diem and Allowance Lookups Without Spreadsheets

A practical guide for teams replacing manual rate tables with reliable, queryable data for GSA, DTMO, and State Department sources.

Scraping Federal Allowance Tables vs. Using an API

A practical comparison of maintenance work, audit risk, rate history, and integration cost for GSA, DTMO, and State Department data.

Integration guides

Technical content aimed at developers, architects, and implementation teams.

How to query GSA rates by location and effective date

A practical guide to building reliable location-aware workflows.

Normalizing DTMO and DSSR allowance data for one application model

Reduce edge cases by mapping multiple public data sources into one schema.

Building payroll and travel workflows on top of allowance data

A systems-level look at using rates in downstream business processes.

What you will learn here

This section focuses on practical articles for developers, operations teams, payroll teams, and travel administrators who need accurate government allowance and per diem data. Topics include GSA, DTMO, DSSR, OCONUS workflows, effective dates, normalization, and the operational tradeoffs between manual lookups and API-first systems.

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