Massachusetts: seller's permit & resale certificate
Sales tax · Agency: Massachusetts Department of Revenue (DOR)
- Resale certificate
- Sales Tax Resale Certificate (ST-4)Get the official form →
- How long it's valid
- Single purchase or blanket (checkbox on form). No expiration stated. Vendor retains it as part of permanent tax records; DOR may require production of certificates within 60 days of notice (830 CMR 64H.8.1(4)(d)).
- Seller's permit
- Sales and Use Tax Registration (Vendor's Registration Certificate, Form ST-1) — fee not published. Register through MassTaxConnect. Once approved DOR mails a registration certificate (Form ST-1) for each location, which must be posted and visible at all times. No fee information found on DOR pages opened.Register with Massachusetts Department of Revenue →
- Buyer registered in another state?
- Yes, by signed statement rather than ST-4 — DOR Directive 89-10: a Massachusetts vendor may accept, in good faith, a statement on the out-of-state purchaser's letterhead (or with business card attached) signed under penalties of perjury that (1) the purchaser is not engaged in business in Massachusetts and (2) is purchasing solely for resale in the ordinary course of business; if registered in another state, attach a copy of that registration or list the permit number and state. Notarization is no longer required.
- Multistate forms
- 830 CMR 64H.8.1: a resale certificate is 'Form ST-4, a certificate prescribed by the Commissioner' and must be in the form prescribed, showing purchaser's name, address and registration number. ST-4: the purchaser certifies it holds a valid Massachusetts Vendor's Registration; the certificate relieves the vendor only if taken in good faith from a purchaser holding a valid Massachusetts sales tax registration. Massachusetts is not an SST member and is not listed on the MTC certificate.
- Drop shipments
- DOR Directive 86-21: when a Massachusetts-registered vendor drop ships property to a Massachusetts consumer on behalf of an out-of-state retailer not engaged in business in Massachusetts, the drop shipment is a retail sale by the Massachusetts vendor (the deliverer) and is taxable.
- Good to know
- Manufacturers claiming exempt use of materials/tools use Form ST-12 (Exempt Use Certificate), not ST-4; exempt organizations use Form ST-5.
- Property bought under ST-4 and used other than for retention, demonstration or display while held for sale is deemed a retail sale by the purchaser.
- Massachusetts taxable services for resale purposes are limited to telecommunications services (830 CMR 64H.8.1).
Official sources for Massachusetts (5)
- MA DOR Form ST-4 Sales Tax Resale Certificate (Rev. 8/16)
- 830 CMR 64H.8.1 Resale and Exempt Use Certificates
- DOR Directive 89-10 Out-of-State Vendor; Property Purchased for Resale
- DOR Directive 86-21 Drop Shipments
- Mass.gov — Register Your Business with MassTaxConnect
Checked 2026-10-12. Multistate forms: SST SSTGB Form F0003 · MTC uniform certificate