You pulled a hot rookie out of a hobby box. Or you bought a raw card at a show that you think will grade clean. The next decision is which grading service to use. PSA, BGS, SGC, or CGC. The market has answered this question loudly over the last decade, and the answer is PSA. Here is why, and what it means for your wallet and your tax return.

### Why PSA outsells BGS in liquidity

Liquidity is the speed at which you can sell a graded card at fair market value. PSA cards have more liquidity than BGS cards on every major sales platform. eBay sold-comp data, Goldin auction results, and Whatnot live break sales all show the same pattern: a PSA-graded card sells faster and often for more than a comparable BGS-graded card.

Three reasons drive this, and none of them are about which slab looks nicer.

The brand is the liquidity. PSA has been the dominant grading service since 1991. Buyers and sellers transact PSA slabs without thinking. New collectors entering the hobby see PSA first because PSA dominates social media, live break content, and most major auction catalogs. The PSA logo on a slab is closer to a currency than a cosmetic preference.

The pop reports are the standard reference. PSA's population reports are how the hobby measures rarity at a specific grade. When a buyer wants to know how many copies of a card exist at PSA 10, the PSA pop report is the answer everyone checks. BGS reports exist but they are not where price discovery happens.

Volume is structural, and PSA owns the volume. PSA processes more cards per week than every other grading service combined. PSA's parent (Collectors, formerly Collectors Universe) owns Goldin Auctions, Card Ladder, and other hobby infrastructure. Grading, pricing data, and high-end auctions sit under one roof, which compounds PSA's liquidity advantage. More cards graded means more comps, more comps means tighter pricing, and tighter pricing means faster sales. Competitors trying to scale into PSA's volume bracket would have to build or buy the same stack.

Slab design itself is subjective. Some collectors love the BGS Black Label and the sub-grade system on the label. Others prefer the cleaner PSA case. There is no objectively better slab. Aesthetic preference does not move market liquidity, though. Brand and volume do.

### Where BGS still wins

PSA is not always the right call. BGS still wins in specific corners of the hobby:

**Vintage with paper damage.** BGS sub-grades let buyers see exactly which characteristic dragged the grade down. For pre-1980 cards where centering, edges, and surface vary widely, BGS sub-grades give buyers more information.

**Black Label and Pristine 10.** A BGS Black Label (10/10 across all sub-grades) is rarer than a PSA 10. For modern hits where you suspect perfection, BGS Black Label can outperform PSA 10 on auction comps.

**Certain inserts and parallels.** A few card categories sell better in BGS slabs because the early collectors of those sets used BGS. Some Topps Finest parallels and certain Bowman Chrome refractors sell stronger in BGS for legacy reasons.

If your card fits one of these categories, BGS makes sense. Otherwise, PSA is the default.

### The cost-benefit math before you grade

Grading is not free. PSA tiers its pricing and turnaround by service level: Value (longest turnaround, lowest cost), Regular, Express, and Super Express. Each tier has a card-value cap; you can only submit a card under a tier whose declared-value limit covers your card.

PSA's tier structure was restructured most recently in late 2024 and changes in both pricing and posted turnaround windows several times per year. Confirm current rates and SLAs at psacard.com before every submission. The general shape: Value (longest turnaround, lowest cost) is the entry point, Regular and Express tiers cost more and turn faster, and each tier carries a declared-value cap that gates which cards can use it. BGS uses a similar tier structure. The cross-service price spread at equivalent service levels has narrowed.

The grading economics question reduces to one expected-value calculation:

Expected post-grade value = (P(PSA 10) × PSA 10 comp) + (P(PSA 9) × PSA 9 comp) + (P(below 9) × low-grade comp).

Then: Grading profit = Expected post-grade value minus grading fee minus raw market value (the immediate sale you gave up).

If grading profit is positive, grade it. If negative or close to zero, sell raw and move on.

Example with a Value-tier submission at $25 (substitute your actual current PSA rate): a raw card with a current market value of $30. Estimated PSA 10 comp $80. Estimated PSA 9 comp $40. Estimated PSA 8 comp $25. Probabilities: 40% PSA 10, 50% PSA 9, 10% PSA 8.

Expected post-grade value: ($80 × 0.40) + ($40 × 0.50) + ($25 × 0.10) = $32 + $20 + $2.50 = $54.50.

Grading profit: $54.50 minus $25 grading fee minus $30 raw market = -$0.50.

Marginally negative. This card is a coin flip on grading economics. A higher PSA 10 probability, a wider PSA 10 to raw spread, or a lower grading fee tier tips it positive. A $40 raw card with the same probabilities and tier doesn't grade. The expected post-grade value rises proportionally with PSA 10 comp, but raw cost rises faster.

### How grading fees affect your taxes

Grading fees are a deductible business expense if you operate as a business under Schedule C. Report them on Part V Line 27a (Other expenses), itemized as "Grading fees" in the Part V detail. Not Line 22 (Supplies); grading is a service, not a consumable supply. Some practitioners use Line 17 (Legal and professional services) if they classify the grading service as professional, but Line 27a with a "Grading fees" label is the cleanest treatment and matches how KKATC Cards categorizes the expense.

If you operate as a hobbyist, grading fees are not deductible. The Tax Cuts and Jobs Act, extended under OBBBA, eliminated miscellaneous itemized deductions for hobby expenses. You can still subtract the cost basis of the card itself when calculating gain (basis reduction is a different mechanism than expense deduction), but you cannot offset grading fees, shipping, supplies, or platform commissions against the sale. The grading cost is money spent that doesn't come back to you on your tax return.

This is one of the strongest financial arguments for treating consistent reselling activity as a business. A reseller who grades 50 cards a year at $25 each has $1,250 in grading expenses. As a business, that's a $1,250 deduction. As a hobbyist, it's $1,250 you spent that you can't recover on your tax return.

For more on the hobby vs business decision, see "Hobby to Business: When Does the IRS Care?"

For a deeper cost-benefit calculator including the time value of inventory tied up during grading, see "Is It Worth Grading? Cost-Benefit Calculator" (coming in V1.6).

### Bottom line

PSA wins on liquidity for the vast majority of cards. BGS wins on vintage, on Black Label cards, and in specific legacy markets. Grade with PSA by default unless the card fits a BGS niche. Track your grading fees as a business expense to offset against gross sales.

KKATC Cards Sales tab tracks grading service per card. Your Schedule C output picks it up automatically.

This is general tax information, not tax advice. Talk to a CPA or enrolled agent about your specific situation.

Liquidity, eBay buyer behavior, auction-house preference, and KK's professional recommendation.

PSA vs BGS: Why PSA Brings More Value Despite the 100-Day Wait