CollectibleIQ Editorial

The CollectibleIQ Blog

Plain-English guides for collectors: grading, pricing, tax, and how to track a real portfolio.

Free checklists

2025 NFL · Topps Chrome

2025 Topps Chrome Football Checklist

Every card, parallel, and pack odd. Hobby, Jumbo, Mega, FDI, Breaker Delight.

2025-26 NBA · Bowman

2025-26 Bowman Basketball Checklist

Cooper Flagg #1 RC, Dylan Harper, AJ Dybantsa. NBA + NCAA, every parallel.

All Fundamentals Grading Market Intel Finance Tax Tutorials Reference

Tax

The Complete 1099-K Guide for Sports Card Sellers (2026)

Selling sports cards on eBay and wondering about the 1099-K? This guide explains the $20,000/200 transaction threshold, how to calculate your real profit, what you can deduct, and how to file correctly.

12 min readMar 23, 2026