Resources
Federal Tax & IRS Resources
IRS – Business Tax Information - https://www.irs.gov/businesses
IRS – Official Website - https://www.irs.gov/
Where’s My Refund? (IRS) - https://www.irs.gov/wheres-my-refund
Get Your IRS Tax Transcript - https://www.irs.gov/businesses/get-a-business-tax-transcript
Small Business and Self-Employed Tax Center - https://www.irs.gov/businesses/small-businesses-self-employed
IRS Forms & Instructions - https://www.irs.gov/forms-instructions
State & Local Resources
State Sales Tax Resources (Avalara) – https://www.avalara.com/taxrates/en/download-tax-tables.html
Sales & Use Tax Calculator & Lookup tool - https://www.avalara.com/taxrates/en/calculator.html
State of CT – Official Website - https://portal.ct.gov/drs-myconnect
State of CT – 1099 Filing Online - Electronically filing Form 1099
State of NH – Tax Filing NH Granite Tax Connect - Home
State of IL – Official Website - MyTax Illinois
State of WI – Official Website - My Tax Wisconsin
Small Business & Bookkeeping Tools
QuickBooks Online Pricing - Intuit QuickBooks Online - Pricing
QuickBooks Online Training Videos - QuickBooks Online Training Videos
Right Tool for QBO - RightTool for QuickBooks Online
Loan Amortization Calculator - Amortization Calculator | Bankrate
DropBox Desktop App - Dropbox Desktop Experience for macOS & Windows
Googe Drive App - Google Drive: Share Files Online with Secure Cloud Storage
Key Tax Filing Deadlines
Quarterly Estimated Tax Due Dates (Jan 15, Apr 15, Jun 15, Sep 15)
Payroll tax deadlines
Annual filing deadlines
1099 Filing - IRS & Recipients: February 2, 2026
Electronic filing threshold: The e-filing threshold for information returns was lowered to 10 or more forms (including Forms 1099) for tax year 2024 and later. If you have to file 10 or more total information returns, you must e-file.