Auto Repair & Collision Shops Bookkeeping in New Hampshire

New Hampshire levies no statewide general sales tax, so the parts-versus-labor taxability question that dominates repair shop compliance in most states does not arise here. No sales tax and no wage income tax, but the Business Profits Tax and Business Enterprise Tax both apply above modest thresholds. Splitting them on the invoice is still worth doing for an entirely different reason: parts and labor carry very different margins, and a shop that records one combined figure cannot tell which half of the business is actually earning.

With no New Hampshire sales or use tax to account for, parts purchasing is a pure inventory question here rather than a compliance one. That is genuinely simpler, and it puts the emphasis where it belongs: parts bought are an asset until they go on a ticket, and a shop that expenses every purchase at the counter has no idea what is sitting on the shelves or how much of it will never be used.

Employer registration in New Hampshire runs through the New Hampshire Department of Employment Security — a separate account number, a separate login, and separate deadlines. With no New Hampshire sales tax account to maintain, this is the registration that matters most here — and the unemployment insurance rate the New Hampshire Department of Employment Security assigns from your claims history is the payroll cost most auto repair and collision shops never revisit after the first year.

New Hampshire assigns filing frequency by liability — business taxes filed annually. Because New Hampshire includes an annual bracket, a low-volume seller here can go a full year between filings, which is exactly when a liability account drifts unnoticed. We reconcile it monthly regardless of when the return is due.