Trusted by 1,000+ contractors

Business banking built for HVAC contractors

The all-in-one platform that helps HVAC and plumbing 
earn up to 3% APY, protect their cash, and grow faster.

Up to 3% APY
$0 monthly fees
Up to $3M FDIC coverage
Affiniti is a financial technology company and is not an FDIC-insured bank. Banking services provided by Thread Bank, Member FDIC. FDIC deposit insurance covers the failure of the insured bank. Certain conditions apply to the pass-through insurance coverage.

Trusted by HVAC contractors across America

1,000+ contractors bank with ACCA Business Banking.

One Hour Heating & Air Conditioning
Sasso Mechanical
Rutan Mechanical
heating bast
Quality Mechanical Corporation
K logo
Legacy cooling&heating
mattioni plumbing heating & cooling
OAK GROVE
Michael Mattioini
We used to chase receipts at the end of every month. Now, everything is organized the moment it’s purchased. We can see our true costs by department in real time. 
My back office absolutely loves it.
Michael Mattioni
Owner, Mattioni Plumbing, Heating & Cooling

High yield. Real protection. Zero fees

3% APY

Earn on every dollar

Earn up to 3% APY on your operating cash, versus the 0.04% most community banks pay. No minimums, no maintenance fees.

$3M

FDIC coverage that goes further

Up to $3M in FDIC insurance across program banks — far beyond the standard $250k — so your cash stays protected.

$0

No fees, no catch

No monthly or maintenance fees, free ACH and check delivery, 
and no minimum balance to hold.

Your cash shouldn't
just sit there

High yield, real protection, and payments
that move fast — all free.

Earn up to 3% on your idle cash

Up to 3% APY on your full balance, and it stays completely liquid

A dedicated account per supplier

Keep just what you spend with each wholesaler in its own account; the rest stays protected from duplicate charges.

Free same-day ACH, anywhere

Send unlimited same-day ACH payments anywhere, for free.

Free check printing and mailing

We cut, print, and ship every check for you — no fees, no trips to the post office.

Syncs to QuickBooks daily

Every transaction flows in with the right details, so your books stay current.